<template>
  <div class="list" ref="wrapper">
    <div>
      <div class="area">
        <div class="title border-rightbottom">
          当前城市
        </div>
        <div class="button-list">
          <div class="button-wrapper">
            <div class="button">{{this.$store.state.city}}</div>
          </div>
        </div>
      </div>
      <div class="area">
        <div class="title border-rightbottom">
          热门城市
        </div>
        <div class="button-list">
          <div class="button-wrapper" v-for="item of hot" :key="item.id" @click="handleCityClick(item.name)">
            <div class="button">{{item.name}}</div>
          </div>
        </div>
      </div>
      <div class="area" v-for="(item, key) of cities" :key="key" :ref="key">
        <div class="title border-rightbottom">
          {{key}}
        </div>
        <div class="item-list">
          <div class="item border-topbottom" v-for="innerItem of item" :key="innerItem.id" @click="handleCityClick(innerItem.name)">{{innerItem.name}}</div>
        </div>
      </div>
    </div>
  </div>
</template>

<script>
import Bscroll from 'better-scroll'
export default {
  name: 'CityList',
  props: {
    hot: Array,
    cities: Object,
    letter: String
  },
  methods: {
    handleCityClick (city) {
      this.$store.commit('changeCity', city)
      this.$router.push('/')
    }
  },
  mounted () {
    this.scroll = new Bscroll(this.$refs.wrapper)
  },
  watch: {
    letter () {
      if (this.letter) {
        const element = this.$refs[this.letter][0]
        this.scroll.scrollToElement(element)
      }
    }
  }
}
</script>

<style lang="stylus" scoped>
  @import "~styles/varibles.styl";
  .border-rightbottom:before,
  .border-rightbottom:after{
    border-color: #ccc;
  }
  .list {
    overflow: hidden;
    position: absolute;
    top: 1.58rem;
    left: 0;
    right: 0;
    bottom: 0;
  }
  .title {
    line-height: .54rem;
    background-color: #eee;
    padding-left: .2rem;
    color: #666;
    font-size: .26rem;
  }
  .button-list {
    padding: .1rem .6rem .1rem .1rem;
    overflow: hidden;
  }
  .button-wrapper {
    width: 33.33%;
    float: left;
  }
  .button {
    padding: .1rem 0;
    text-align: center;
    margin: .1rem;
    border: .02rem solid #ccc;
    border-radius: .06rem;
  }
  .item-list .item{
    line-height: .76rem;
    color: #666;
    padding-left: .2rem;
  }
</style>
